Chopping Gaps for Impulse Voltage Generators

HAEFELY HIPOTRONICS line of chopping or sphere gaps can be used for either AC or DC voltage calibration (according to IEC 60052) or as a load capacitor and to provide a chopped lightning impulse. Chopping gaps are an important part of a complete impulse test system when a chopped impulse is required. HAEFELY HIPOTRONICS offers two lines of chopping gaps, the MAFS series which is an automated multiple chopping gap and the KFS series which is a horizontal and vertical sphere gap. Integrated with HAEFELY HIPOTRONICS control units GC 223 and GC 257 the sphere distances can be automatically adjusted. This saves time in setup and also helps to provide a reproducible chopping time.

MAFS Automated Multiple Chopping Gap

Product Brochure

The multiple chopping gap is used to chop lightning impulses on the front and/or on the tail. The multiple chopping gap serves simultaneously as a load capacitor for the impulse generator and allows excellent reproducibility of the chopping time and does not distort the wave shape until the chopping point. The sphere distance is automatically adjusted and operated by the controls GC 223 and GC 257. A manual control box is available as well.

KFS Horizontal & Vertical Sphere Gap

Product Brochure

The sphere gap type KFS H or KFS V can be used for Impulse, AC and DC voltage calibration according to the IEC 60052 recommendation. The spheres are arranged vertically or horizontally, one being mobile. In the vertical version the mobile sphere is remotely adjusted using an electrical drive. I the horizontal version, both spheres are mounted on columns of insulation material hence enabling to superimpose impulse AC and DC voltages. It is also possible to use the gap in a peaking circuit. For the chopping of lightning impulses the sphere gap can be equipped with the optional chopping device.

Additional Product Information

  • Transformer Testing
  • Switchgear Testing
  • Surge Arrester Testing
  • Research & Development

White Papers

A new type of voltage divider for the measurement of high impulse and a.c. voltages Download

Breakdown Behaviour of Air Spark-Gaps with Non-Homogeneous Field at Bias Voltages Download

Increasing the Trigger Range of a Marx Generator by means of Auxiliary Spark Gaps Download

Influence of the Pre-Discharges on Breakdown Behaviour of the Negative Rod-Plane Spark-Gap at Standard 1.2/50 Impulse Voltages Download

Influence of the source impedance on the breakdown behaviour of air spark-gaps Download

Mechanism to explain the switching impulse phenomena Download

The Firing Probability of Coupling Spark Gaps of the Multiplying Circuit according to Marx Download

Transient Phenomena in the Marx Multiplying Circuit after Firing the First Coupling Spark Gap Download

Application Guides

Cable Type & Routine TestingCable Type & Routine Testing Download